package demo603;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

    public class DbUntil {

        // 数据库连接信息
        private static final String URL = "jdbc:mysql://localhost:3306/usersDb";
        private static final String DB_USERNAME = "root";
        private static final String DB_PASSWORD = "123456";

        // 编写一个连接数据库的方法
        public Connection getCon() throws ClassNotFoundException, SQLException {
            Class.forName("com.mysql.cj.jdbc.Driver");
            Connection conn = DriverManager.getConnection(URL, DB_USERNAME, DB_PASSWORD);
            return conn;
        }
    }


